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Objectives. To conduct a prospective evaluation to determine the utility of the BTA stat test in the detection of upper tract transitional cell carcinoma (UTTCC). Monitoring for UTTCC currently relies on invasive procedures such as upper tract imaging, ureteral washing cytology (UWC) and/or ureteroscopy, or voided urine cytology (VUC). The BTA stat test is a sensitive qualitative immunoassay that...
We evaluate the relationship between a serially assessed quantitative diagnostic marker (QDM) and the hazard function for the diagnosis of recurrence of bladder cancer. The marker is based on a bladder tumor associated antigen (BTA TRAK * * Bard Diagnostic Sciences, Inc., Redmond, Washington. ) assay. We present a rigorous approach to the evaluation of diagnostic markers to be used for recurrence...
Objectives. To assess the clinical performance of the BTA TRAK assay and to compare it with that of voided urine cytology (VUC) and the Bard BTA test (BTA) in the detection of recurrent bladder cancer (BC).Methods. The study was performed on randomly selected archival voided urine samples for many of which VUC and/or BTA information was available. Sensitivity was determined in samples from patients...
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